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TranscriptomicsSaccharomyces cerevisiae 3' poly(A) site mapping
The use of alternative polyadenylation sites is common and affects the post-transcriptional fate of mRNA, including its stability, localization, and translation. Here we present a method for genome-wide and strand-specific mapping of poly(A) sites and quantification of RNA levels at unprecedented ef...
ORGANISM(S): Saccharomyces cerevisiae 
2013-01-10 | E-GEOD-40110 | biostudies-arrayexpress
TranscriptomicsGenome-wide analysis of PAPS1-dependent polyadenylation identifies novel roles for functionally specialized poly(A) polymerases in Arabidopsis thaliana
The poly(A) tail at 3' ends of eukaryotic mRNAs promotes their nuclear export, stability and translational efficiency, and changes in its length can strongly impact gene expression. The Arabidopsis thaliana genome encodes three canonical nuclear poly(A) polymerases, PAPS1, PAPS2 and PAPS4. As shown ...
ORGANISM(S): Arabidopsis thaliana 
2015-07-30 | E-GEOD-57690 | biostudies-arrayexpress
TranscriptomicsRNA polyadenylation landscape in human and mouse cells
Alternative polyadenylation (APA) of mRNAs has emerged as an important mechanism for post-transcriptional gene regulation in higher eukaryotes. Although microarrays have recently been used to characterize APA globally, they have a number of serious limitations that prevents comprehensive and highly ...
ORGANISM(S): Mus musculus 
2011-02-26 | E-GEOD-25450 | biostudies-arrayexpress
TranscriptomicsBudding yeast mRNA poly(A) site mapping
The yeast mRNA export adaptor Yra1 binds the Pcf11 subunit of cleavage-polyadenylation factor CF1A linking export to 3'-end formation. We found a surprising consequence of this interaction is that Yra1 influences cleavage-polyadenylation. Yra1 competes with the CF1A subunit, Clp1, for binding to Pcf...
ORGANISM(S): Saccharomyces cerevisiae 
2011-09-24 | E-GEOD-30703 | biostudies-arrayexpress
TranscriptomicsCleavage Factor Im as a key regulator of 3’ UTR length
In eukaryotes, the 3' ends of RNA polymerase II-generated transcripts are made in the majority of cases by site-specific endonucleolytic cleavage, followed by the addition of a poly(A) tail. By alternative polyadenylation, a gene can give rise to multiple mRNA isoforms that differ in the length of t...
ORGANISM(S): Homo sapiens 
2012-10-30 | E-GEOD-40137 | biostudies-arrayexpress
TranscriptomicsPoly(A) tail length profiling of mRNAs from fission yeast
To obtain global data on polyadenylation of mRNAs, we fractionated the mRNAs according to their poly(A) tail length using a poly-U sepharose column followed by differential elution at five temperatures. Five mRNA fractions with distinct ranges of poly(A) tail length were then hybridized to microarr...
ORGANISM(S): Schizosaccharomyces pombe 
2007-05-16 | E-TABM-217 | biostudies-arrayexpress
TranscriptomicsBATSeq of ESC-FCS/ESC-2i/NSC
Single-cell polyadenylation site quantification 48 single cells each of murine embryonic stem cells maintained in FCS+LIF medium ("ESC"), embryonic stem cells maintained in serum free, 2i containing medium ("2i") and neural stem cells ("NSC") were sequenced by BATSeq, a...
ORGANISM(S): Mus musculus 
2015-06-09 | E-GEOD-60768 | biostudies-arrayexpress
TranscriptomicsIntegrative genome-wide analysis reveals HLP1, a novel RNA-binding protein? regulates plant flowering by targeted alternative polyadenylation
Alternative polyadenylation (APA) is a widespread mechanism for gene regulation and has been implicated in flowering, but the molecular basis governing the choice of a specific poly(A) site during the vegetative-to-reproductive growth transition remains unclear. Here we characterize HLP1, an hnRNP A...
ORGANISM(S): Arabidopsis thaliana 
2015-06-30 | E-GEOD-39051 | biostudies-arrayexpress
TranscriptomicsGenome-wide analysis of poly(A) site selection in Schizosaccharomyces pombe
Polyadenylation of pre-mRNAs, a critical step in eukaryotic gene expression, is mediated by cis elements, collectively called the polyadenylation signal. Genome-wide analysis of such polyadenylation signals was missing in fission yeast, which is an important model organism. We demonstrate that the c...
ORGANISM(S): Schizosaccharomyces pombe 
2013-09-01 | E-MTAB-1824 | biostudies-arrayexpress
TranscriptomicsA global analysis of tandem 3'UTRs in eosinophilic chronic rhinosinusitis with nasal polyps
Background: Alternative polyadenylation (APA) is emerging as a widespread mechanism of gene regulation. The usage of APA sites allows a single gene to encode multiple mRNA transcripts with different 3'-untranslated region (3'UTR) lengths. Many disease processes reflect the importance of the regulati...
ORGANISM(S): Homo sapiens 
2012-12-31 | E-GEOD-39957 | biostudies-arrayexpress
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